47255513 has 2 divisors, whose sum is σ = 47255514. Its totient is φ = 47255512.

The previous prime is 47255503. The next prime is 47255531. The reversal of 47255513 is 31555274.

Together with next prime (47255531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35366809 + 11888704 = 5947^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 47255513 - 2⁶ = 47255449 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47255513.

It is not a weakly prime, because it can be changed into another prime (47255503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23627756 + 23627757.

It is an arithmetic number, because the mean of its divisors is an integer number (23627757).

Almost surely, 2^47255513 is an apocalyptic number.

It is an amenable number.

47255513 is a deficient number, since it is larger than the sum of its proper divisors (1).

47255513 is an equidigital number, since it uses as much as digits as its factorization.

47255513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 32.

The square root of 47255513 is about 6874.2645424802. The cubic root of 47255513 is about 361.5353995179.

The spelling of 47255513 in words is "forty-seven million, two hundred fifty-five thousand, five hundred thirteen".